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主題: Space Surveillance Telescope 作者: peter 於 2019-07-12 21:50:06 https://www.spiedigitallibrary.org/journals/Optical-Engineering/volume-52/issue-05/053604/Space-Surveillance-Telescope--focus-and-alignment-of-a-three/10.1117/1.OE.52.5.053604.full?SSO=1
(https://www.spiedigitallibrary.org/ContentImages/Journals/OPEGAR/52/5/053604/WebImages/OE_52_5_053604_f007.png) https://astronomy.stackexchange.com/questions/21478/in-a-reflecting-telescope-cassegrain-is-there-a-difference-between-using-a-co (https://i.stack.imgur.com/j0i4Y.jpg) |